mailchimp python

chimp = mailchimp.Mailchimp('my api key')
LIST_ID = 'my list id'

@app.route('/webhook', methods=['POST'])
def webhook():
    req = request.get_json(silent=True, force=True)
    print("Request:")
    print req['result']['action']

    email = req['result']['parameters']['email']
    fname = req['result']['parameters']['fname']
    print email + ' ' + fname

    if req.get("result", {}).get("action", {}) != "list_management":
        return {}
    else:
        print 'else statement ran'
        chimp.lists.subscribe(LIST_ID,
                              {'email': email},
                              merge_vars={'FNAME': fname},
                              send_welcome=False)
        print 'success'
    print 'else statement over'